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Finding the Fourth Proportional to 600,116.80, 828,239.52 and 345,478.72

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Solution

The fourth proportional to 600,116.80, 828,239.52 and 345,478.72 is: 476,805.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    600,116.80 : 828,239.52 = 345,478.72 : x
  2. Step 2: Convert to fraction form
    600,116.80/828,239.52 = 345,478.72/x
  3. Step 3: Cross multiply
    600,116.80x = 828,239.52 × 345,478.72
  4. Step 4: Simplify right side
    600,116.80x = 286,139,129,223.01
  5. Step 5: Solve for x
    x = 286,139,129,223.01/600,116.80
  6. Step 6: Final answer
    x = 476,805.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.